/*

const people = [

{name: 'Meena', age: 20},

{name: 'Rina', age: 15},

{name: 'Suchorita', age: 22}

];

1. Challenging Follow above array of objects. So, you have 3 objects as

array element. Can you find out the total sum from here?

20 + 15 + 22 = 57 . The output will be 57

What are you thinking? Yeah! Do it with for loop. I know you can do it.

But! Wait !! Wait !!! Do the same task using array.reduce() method.

problem provider : https://drive.google.com/file/d/1XcvIBe_rJlr6GY2rTnHlbIluTABXNhp7/view

*/

const people = [

{name: 'Meena', age: 20},

{name: 'Rina', age: 15},

{name: 'Suchorita', age: 22}

];

/* ===================================

First task (using for loop)

======================================*/

let sumOfAge = 0 ;

for( let i = 0; i < people.length; i++){

const age = people[i].age;

sumOfAge = sumOfAge + age ;

};

console.log(sumOfAge);

/* ================================================

Final task using for reduce()

===================================================*/

const allAges = people.map(x => x.age);

const ageTotal = allAges.reduce((previoustotal, presentValue) => previoustotal + presentValue,0);

console.log(ageTotal);